Physical Signatures Of Magnetospheric Boundary Layer Processes

Author : J.A. Holtet,A. Egeland
Publisher : Springer Science & Business Media
Page : 444 pages
File Size : 43,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401110525

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Physical Signatures of Magnetospheric Boundary Layer Processes by J.A. Holtet,A. Egeland Pdf

Summary of the NATO Advanced Research Workshop on Physical Signatures of Magnetospheric Boundary Layer Processes T A POTEMRA, M I PUDOVKIN, R W SMITH, V M VASYLIUNAS and A EGELAND 451 PREFACE These proceedings are based on the invited talks and selected research reports presented at the NATO Advanced Workshop on "PHYSICAL SIGNATURES OF MAGNETOSPHERIC BOUNDARY LAYER PROCESSES", held at Sundvolden Hotel, Norway, 9.-14.May 1993. The international political and scientific communities have gradually realized that the Earth's environment is more fragile than previously believed. This has led to the establishment of international research programmes directed toward the understanding of "Global Change". The Earth's magnetosphere, "the Earth-space", is a part of our environment, and physical processes in the magnetosphere and coupling between the solar energy stream, the solar wind, and the Earth-space are important in the complete understanding of our environment. Variations in the electromagnetic and particle energy output of the Sun have a significant effect on global changes. The energy transfer mechanisms at the days ide magnetospheric boundary layers and their ionospheric signatures are perhaps even more important to solar terrestrial research than the night-side processes in this connection. The dayside boundary layers and the polar cusps are the Earth's windows to outer space. The present NATO ARW was the latest in a series of conferences focused on dayside magnetospheric phenomena. It is five years since the preceding Workshop on "Electromag netic Coupling in the Polar Clefts and Caps" was held at Lillehammer in September 1988.

Author : Bengt Hultqvist,Marit Øieroset
Publisher : Springer Science & Business Media
Page : 397 pages
File Size : 41,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400900455

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Transport Across the Boundaries of the Magnetosphere by Bengt Hultqvist,Marit Øieroset Pdf

The present volume is the second one in the Space Sciences Series of ISSI (Inter national Space Science Institute) and the October 1997 issue of Space Science Reviews. It contains the proceedings of the first workshop in the ISSI study project on "Source and Loss Processes of Magnetospheric Plasma", which was held at ISSI in Bern on October 1-5, 1996. The participants in the project, the project team, numbered at that time 51, of whom 45 participated in the workshop. The main tasks of the first workshop were to provide a basis for the further work by means of presentation and discussion of those 16 review papers which are pub lished in this volume and to prepare plans for the work of six working groups in the year up to the second workshop in October 1997. The ISSI study project on "Source and Loss Processes of Magnetospheric Plas ma" was selected by ISSI in December 1995 as the first in the solar-terrestrial physics field after consulting a number of groups of senior scientists represent ing the international space physics community at large. The undersigned, Bengt Hultqvist, is the project leader. A Core Group, consisting of two co-chairs for each of six working groups and four ex-officio members from the Space Science Com mittee of ISSI (H. Balsiger, A. Galeev, G. Haerendel, and D. Southwood), con vened at ISSI in March 1996.

Author : Jøran Moen,A. Egeland,Michael Lockwood
Publisher : Springer Science & Business Media
Page : 446 pages
File Size : 47,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401152143

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Polar Cap Boundary Phenomena by Jøran Moen,A. Egeland,Michael Lockwood Pdf

These proceedings are based on the invited talks and selected research reports presented at the NATO Advanced Study Institute (ASI) on "POLAR CAP BOUNDARY PHENOMENA" held at Longyearbyen, Svalbard, June 4 - 13, 1997. The role of the polar cap and its boundary is very substantial in solar-terrestrial physics. At this NATO AS! a major change in thinking on the "cusp" precipitation region in the high-latitude days ide upper atmosphere was reflected, at least for intervals when the interplanetary magnetic field (IMF) is directed southward. It is likely that this has implications for northward IMF as well. The change comes from the now almost complete acceptance of the concept of magnetosheath particle entry along open magnetic field lines and the evolution of the precipitation into the upper atmosphere with time elapsed since magnetic reconnection which opened the field line. A key prediction of this view is that the low-latitude boundary layer (LLBL) is on open field lines.

Author : Jean-Andre Sauvaud,Zdenek Nemecek
Publisher : Springer Science & Business Media
Page : 356 pages
File Size : 50,9 Mb
Release : 2004-10-12
Category : Science
ISBN : 1402027664

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Multiscale Processes in the Earth's Magnetosphere: From Interball to Cluster by Jean-Andre Sauvaud,Zdenek Nemecek Pdf

The past forty years of space research have seen a substantial improvement in our understanding of the Earth’s magnetosphere and its coupling with the solar wind and interplanetary magnetic ?eld (IMF). The magnetospheric str- ture has been mapped and major processes determining this structure have been de?ned. However, the picture obtained is too often static. We know how the magnetosphere forms via the interaction of the solar wind and IMF with the Earth’s magnetic ?eld. We can describe the steady state for various upstream conditions but do not really understand the dynamic processes leading from one state to another. The main dif?culty is that the magnetosphere is a comp- cated system with many time constants ranging from fractions of a second to days and the system rarely attains a steady state. Two decades ago, it became clear that further progress would require multi-point measurements. Since then, two multi-spacecraft missions have been launched — INTERBALL in 1995/96 and CLUSTER II in 2000. The objectives of these missions d- fered but were complementary: While CLUSTER is adapted to meso-scale processes, INTERBALL observed larger spatial and temporal scales. However, the number of papers taking advantage of both missions simul- neously is rather small.

Author : Theodore A. Fritz,Shing F. Fung
Publisher : Springer Science & Business Media
Page : 414 pages
File Size : 48,5 Mb
Release : 2006-02-23
Category : Science
ISBN : 9781402036057

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The Magnetospheric Cusps: Structure and Dynamics by Theodore A. Fritz,Shing F. Fung Pdf

This collection of papers will address the question "What is the Magnetospheric Cusp?" and what is its role in the coupling of the solar wind to the magnetosphere as well as its role in the processes of particle transport and energization within the magnetosphere. The cusps have traditionally been described as narrow funnel-shaped regions that provide a focus of the Chapman-Ferraro currents that flow on the magnetopause, a boundary between the cavity dominated by the geomagnetic field (i.e., the magnetosphere) and the external region of the interplanetary medium. Measurements from a number of recent satellite programs have shown that the cusp is not confined to a narrow region near local noon but appears to encompass a large portion of the dayside high-latitude magnetosphere and it appears that the cusp is a major source region for the production of energetic charged particles for the magnetosphere. Audience: This book will be of interest to space science research organizations in governments and industries, the community of Space Physics scientists and university departments of physics, astronomy, space physics, and geophysics.

Author : Andreas Keiling,Octav Marghitu,Michael Wheatland
Publisher : John Wiley & Sons
Page : 568 pages
File Size : 43,5 Mb
Release : 2018-03-23
Category : Science
ISBN : 9781119325796

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Electric Currents in Geospace and Beyond by Andreas Keiling,Octav Marghitu,Michael Wheatland Pdf

Electric currents are fundamental to the structure and dynamics of space plasmas, including our own near-Earth space environment, or “geospace.”This volume takes an integrated approach to the subject of electric currents by incorporating their phenomenology and physics for many regions in one volume. It covers a broad range of topics from the pioneers of electric currents in outer space, to measurement and analysis techniques, and the many types of electric currents. First volume on electric currents in space in over a decade that provides authoritative up-to-date insight on the current status of research Reviews recent advances in observations, simulation, and theory of electric currents Provides comparative overviews of electric currents in the space environments of different astronomical bodies Electric Currents in Geospace and Beyond serves as an excellent reference volume for a broad community of space scientists, astronomers, and astrophysicists who are studying space plasmas in the solar system. Read an interview with the editors to find out more: https://eos.org/editors-vox/electric-currents-in-outer-space-run-the-show

Author : Bengt Hultqvist,Marit Øieroset,Götz Paschmann,Rudolf Treumann
Publisher : Springer Science & Business Media
Page : 491 pages
File Size : 55,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401144773

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Magnetospheric Plasma Sources and Losses by Bengt Hultqvist,Marit Øieroset,Götz Paschmann,Rudolf Treumann Pdf

This sixth volume in the ISSI Space Sciences Series is a fully integrated book that gives an authoritative overview of all aspects of the topic in a well-organized form. Leading international scientists from all over the world contributed consistent, cross-referenced articles of high scientific standard.

Author : Anonim
Publisher : Unknown
Page : 662 pages
File Size : 45,6 Mb
Release : 1997
Category : Aeronautics
ISBN : STANFORD:36105021091405

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International Aerospace Abstracts by Anonim Pdf

Author : Christoph Reigber,Hermann Lühr,Peter Schwintzer
Publisher : Springer Science & Business Media
Page : 572 pages
File Size : 46,9 Mb
Release : 2012-09-07
Category : Science
ISBN : 9783540383666

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First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies by Christoph Reigber,Hermann Lühr,Peter Schwintzer Pdf

In 1995, the German Space Agency DARA selected the CHAllenging Minisatellite Payload (CHAMP) mission for development under a special support programme for the space industry in the new states of the unified Germany, with the Principal Investigator and his home institution GFZ Potsdam being ultimately responsible for the success of all mission phases. After three years of spacecraft manufactur ing and testing, the satellite was injected successfully into its final, near circular, almost polar and low altitude (450 km) orbit from the cosmodrome Plesetsk in Russia on July 15, 2000. After a nine month commissioning period during which all spacecraft systems and instruments were checked, calibrated and validated, the satellite has been delivering an almost uninterrupted flow of science data since May 2001. Since this date, all science data have been made available to the more than 150 selected co-investigator teams around the globe through an international Announcement of Opportunity. The scientific goals of the CHAMP mission are to gain a better understanding of dynamic processes taking place in the Earth's interior and in the space near Earth. These goals can be achieved by improved observation of the Earth's gravity and magnetic fields and their time variability with high-performance on-board instru mentation and by exploring the structure of the Earth's atmosphere and ionosphere through radio occultation measurements.

Author : Per Even Sandholt,H.C. Carlson,A. Egeland
Publisher : Springer Science & Business Media
Page : 287 pages
File Size : 54,8 Mb
Release : 2006-05-02
Category : Science
ISBN : 9780306479694

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Dayside and Polar Cap Aurora by Per Even Sandholt,H.C. Carlson,A. Egeland Pdf

The auroral emissions in the upper atmosphere of the polar regions of the Earth are evidence of the capture of energetic particles from the Sun, streaming by the Earth as the solar wind. These auroral emissions, then, are a window to outer space, and can provide us with valuable information about electrodynamic coupling processes between the solar wind and the Earth's ionosphere and upper atmosphere. Studying the physics of these phenomena extends our understanding of our plasma universe. Ground-based remote-sensing techniques, able to monitor continuously the variations in the signatures of aurorae, in combination with in-situ satellite and rocket measurements, promise to advance dramatically our understanding of the physical processes taking place at the interface of the atmospheres of the Earth and the Sun. Decoding their complexity brings us closer to reliable prediction of communication environments, especially at high latitudes. This understanding, in turn, will help us resolve problems of communication and navigation across polar regions.

Author : COSPAR. Scientific Commission D. D0.1 Symposium,COSPAR. Scientific Assembly
Publisher : Unknown
Page : 462 pages
File Size : 51,7 Mb
Release : 2000
Category : Magnetosphere
ISBN : STANFORD:36105028795933

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Coordinated Measurements of Magnetospheric Processes by COSPAR. Scientific Commission D. D0.1 Symposium,COSPAR. Scientific Assembly Pdf

Author : P Murdin
Publisher : CRC Press
Page : 5610 pages
File Size : 53,7 Mb
Release : 2001-01-01
Category : Science
ISBN : 9781000523034

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Encyclopedia of Astronomy & Astrophysics by P Murdin Pdf

In a unique collaboration, Nature Publishing Group and Institute of Physics Publishing have published the most extensive and comprehensive reference work in astronomy and astrophysics. This unique resource covers the entire field of astronomy and astrophysics and this online version includes the full text of over 2,750 articles, plus sophisticated search and retrieval functionality and links to the primary literature. The Encyclopaedia's authority is assured by editorial and advisory boards drawn from the world's foremost astronomers and astrophysicists. This first class resource is an essential source of information for undergraduates, graduate students, researchers and seasoned professionals, as well as for committed amateurs, librarians and lay people wishing to consult the definitive astronomy and astrophysics reference work.

Author : D. L. Olgaard
Publisher : Unknown
Page : 880 pages
File Size : 45,8 Mb
Release : 1997
Category : Earth sciences
ISBN : UOM:39015048173440

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Solid Earth by D. L. Olgaard Pdf

Author : James L. Burch,Robert L. Carovillano,Spiro K. Antiochos
Publisher : American Geophysical Union
Page : 273 pages
File Size : 48,7 Mb
Release : 1999-01-26
Category : Science
ISBN : 9780875900926

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Sun-Earth Plasma Connections by James L. Burch,Robert L. Carovillano,Spiro K. Antiochos Pdf

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 109. The Sun and the terrestrial magnetosphere have been the subjects of active research since the dawn of the space age. The capabilities of observing both systems with greater and greater detail evolved separately until the 1980s, when it was realized that definitive results on the connection between the Earth and the Sun would require a concerted and joint effort. It was also realized that sophisticated solar-terrestrial research communities existed within all the space-faring nations of the world and that no one of them could launch such an effort by itself. This realization led to the creation of the International Solar-Terrestrial Physics (ISTP) program, which now comprises at least 12 spacecraft and includes extensive ground-based observations and theory and modeling efforts.

Author : Patrick T. Newell,Terry Onsager
Publisher : American Geophysical Union
Page : 404 pages
File Size : 55,5 Mb
Release : 2003-01-10
Category : Science
ISBN : UOM:39015056907572

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Earth's Low-Latitude Boundary Layer by Patrick T. Newell,Terry Onsager Pdf

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 133. We imagine the reader of this preface standing at the AGU bookstall wondering if the tome in hand is worth buying. The answer is “no”, except for certain trifling exceptions. Those who wish to learn about the exciting pioneering years of LLBL research should buy the book for Tim Eastman's excellent historical review, our opening chapter. When did the term “LLBL” first enter the field? Eastman will tell you, and much else besides.